Diversity and host associations of parasitoids attacking mycophagous drosophilids (<scp>D</scp>iptera:<scp>D</scp>rosophilidae) in northern and central<scp>J</scp>apan

Kasuya, Nazuki; Mitsui, Hideyuki; Aotsuka, Tadashi; Kimura, Masahito T.

doi:10.1111/j.1479-8298.2012.00544.x

Cited by 11 publications

(31 citation statements)

References 34 publications

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“…The same Ganaspis cf. brasiliensis is the main larval parasitoid of D. suzukii in South Korea (Daane et al 2016), Japan (Kasuya et al 2013a; Wachi et al 2015; Matsuura et al 2017) and China (Girod et al 2018b), where it probably also attacks two other fruit-inhabiting drosophilids, D. pulchrella and D. subpulchrella , the two sister species of D. suzukii .…”

Section: Discussionmentioning

confidence: 99%

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Girod¹,

Lierhmann²,

Urvois³

et al. 2018

J Pest Sci

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The Asian spotted wing drosophila, Drosophila suzukii, has recently become a serious pest of soft fruits in Europe. Classical biological control through the introduction of larval parasitoids from its native range in Asia is presently being considered. However, host specificity of potential biological control agents has to be determined to avoid releasing species that may have unintended non-target impacts. Larvae of six different European non-target fly species and the target D. suzukii were exposed either on diet or blueberries to three Asian larval parasitoids, Asobara japonica, Leptopilina japonica, and Ganaspis cf. brasiliensis, and one European species, Leptopilina heterotoma. Asobara japonica showed the lowest specificity, attacking and developing in all Drosophilidae. Leptopilina japonica successfully parasitized two non-target Drosophilidae, D. melanogaster and D. subobscura, with one singly progeny emerging from D. immigrans. Ganaspis cf. brasiliensis had the highest level of specificity but variations occurred between two geographical populations tested. A Japanese population was strictly specific to D. suzukii, whereas another population from China parasitized D. suzukii, D. melanogaster and sporadically D. subobscura. The European L. heterotoma successfully developed in D. melanogaster, D. subobscura and occasionally in D. immigrans, but nearly all eggs and larvae in D. suzukii were encapsulated. These results show that Ganaspis cf. brasiliensis is the species with the highest potential for biological control, but more studies are needed on its taxonomic status and the existence of biotypes or cryptic species varying in their specificity before field releases can be conducted in Europe.Electronic supplementary materialThe online version of this article (10.1007/s10340-018-1003-z) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Girod¹,

Lierhmann²,

Urvois³

et al. 2018

J Pest Sci

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“…In contrast, A. japonica and L. japonica are known to have a wider host range, attacking various species of Drosophila larvae on ripe and rotten fruits, mushrooms and decayed leaves (Ideo, Watada, Mitsui, & Kimura, 2008;Kasuya, Mitsui, Aotsuka, & Kimura, 2013). Therefore, females of this species could associate a wider variety of cues with the presence of D. suzukii larvae, allowing it to locate its hosts regardless of the substrate.…”

Section: Discussionmentioning

confidence: 99%

Development of Asian parasitoids in larvae Of Drosophila Suzukii feeding on blueberry and artificial diet

Girod

Rossignaud

Haye

et al. 2018

J Applied Entomology

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In just a few years, the Asian fly Drosophila suzukii has invaded several continents and has become a very serious pest of many fruit crops worldwide. Current control methods rely on chemical insecticides or expensive and labour-intensive cultural practices. Classical biological control through the introduction of Asian parasitoids that have co-evolved with the pest may provide a sustainable solution on condition that they are sufficiently specific to avoid non-target effects on local biodiversity. Here, we present the first study on the development of three larval parasitoids from China and Japan, the Braconidae Asobara japonica and the Figitidae Leptopilina japonica and Ganaspis sp., on D. suzukii. The Asian parasitoids were compared with Leptopilina heterotoma, a common parasitoid of several Drosophilidae worldwide. The three Asian species were successfully reared on D. suzukii larvae in both, blueberry and artificial diet, in contrast to L. heterotoma whose eggs and larvae were encapsulated by the host larvae. All parasitoids were able to oviposit one day after emergence.Asobara japonica laid as many eggs in larvae feeding in blueberry as in artificial diet, whereas L. heterotoma oviposited more in larvae on the artificial diet and the Asian Figitidae oviposited more in larvae feeding on blueberry. Ganaspis sp. laid very few eggs in larvae in the artificial diet, suggesting that it may be specialized in Drosophila species living in fresh fruits. These data will be used for the development of a host range testing to assess the suitability of Asian parasitoids as biological control agents in invaded regions. K E Y W O R D SAsobara, Ganaspis, invasive species, Leptopilina, pre-oviposition period, spotted wing drosophila short development time of the fly, they have to be applied regularly and can cause severe environmental and health concerns (Bruck et al., 2011;Cuthbertson, Collins, Blackburn, Audsley, & Bell, 2014;Sampson, Werle, Stringer, & Adamczyk, 2017;Smirle, Zurowski, Ayyanath, Scott, & MacKenzie, 2017;Van Timmeren & Isaacs, 2013).Cultural management such as the use of insect-proof nets, mass trapping and removal or solarization of infested fruits are also used, but these strategies are expensive and labour-intensive and have to be adjusted to each type of fruit crop or cultivation system (Haye et al., 2016). New control techniques focusing on long-term management are therefore urgently needed. As wild host plants constitute a large reservoir of individuals that can potentially reinvade field crops, controlling the pest at a landscape level is essential.A number of natural enemies are known to have an impact on the dynamics and regulation of Drosophila spp. and may provide an area-wide control of fly populations (Carton, Bouletreau, Lenteren, & Alphen, 1986;Fleury, Gibert, Ris, & Allemand, 2009).Two generalist pupal parasitoids, Trichopria drosophilae Perkins (Hymenoptera, Diapriidae) and Pachycrepoideus vindemmiae (Rondani) (Hymenoptera, Pteromalidae), are found attacking D. suzukii worldwide ...

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“…; Kasuya et al. ,b) and the present additional collections in eight localities including six new localities, Sapporo, Tsuruoka, Shiga‐Kogen, Yudanaka, Tokyo, Tsushima, Fukue and Nagasaki (fig. S1 and table S1).…”

Section: Methodsmentioning

confidence: 74%

“…; Kasuya et al. ). Until now, 36 species have been described in this genus; 13 species from Africa, six from North and South America, nine from South and Southeast Asia, six from Eurasia and two from Oceania including Australia (Fischer , , ; Belokobylskij ; Wharton ; Fischer and Samiuddin ).…”

Section: Introductionmentioning

confidence: 96%

Capacity of Japanese Asobara species (Hymenoptera; Braconidae) to parasitize a fruit pest Drosophila suzukii (Diptera; Drosophilidae)

Nomano

Mitsui

Kimura

2014

J Applied Entomology

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Drosophila suzukii is a pest of soft fruit such as cherry, strawberry or blueberry and recently colonized North America and Europe from Asia. In this study, we assessed the utility of Japanese Asobara species as agents for the biological control of this pest species by examining their host use in nature and their capacity to parasitize this pest species. From Japan, eight Asobara species including putative three undescribed species were found; Asobara japonica was recorded from all over Japan, Asobara tabida from high altitude areas in central and northern Japan, Asobara rossica and Asobara rufescens from central to northern Japan, three undescribed species from central to western or southern Japan and Asobara pleuralis from a subtropical island of Japan. Among them, an undescribed species Asobara sp. TK1 may be useful as an agent for the biological control because it was recorded only from D. suzukii. All of the remaining seven species were generalists mainly using drosophilid species associated with fermenting fruits, and four of them had no or very low abilities to parasitize D. suzukii, indicating that these seven species are not or less appropriate as agents for biological control.

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Diversity and host associations of parasitoids attacking mycophagous drosophilids (Diptera:Drosophilidae) in northern and centralJapan

Cited by 11 publications

References 34 publications

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Development of Asian parasitoids in larvae Of Drosophila Suzukii feeding on blueberry and artificial diet

Capacity of Japanese Asobara species (Hymenoptera; Braconidae) to parasitize a fruit pest Drosophila suzukii (Diptera; Drosophilidae)

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